Detection device



' UNITE-D :STATES PAT OFFICE l v `.mm1` Flanvsjir., cleveland neightsiohib, assigner I Atolreneral ElectricCompanyga corporation of i t New.York f I e Appcatign:muera-1934; serial Neasden Y l comme. wilma-"125i I 1i invention is adetection or inspectionvdef" turned by rod 2li which is operated by mecha-` vice for stems for incandescent Vlampsor sirnilar nism not shown. llheend oflleverwl8` engages articles. t o. `tlfieclainp IB which is prevented fromturning t vThe stems for socfalledtipless lamps comprise by1 an extension of the` pin` I5 which engages -6 `a stein tube and exhaust tube fwithin the ways 2| in a. vertical bracketZl' on bracket I4. l

stem tubegportionsjofthe Ysaid exhaustandstem The second lowering step occurswhen the latch bes being fused together c andan` aperture` or Il is withdrawn from under pin I5, thereby alopening being formed either in the fusedmassias lowing the plunger I2 to` be loweredby its `Weight disclosed in` Mitchell alndQWhite Patent No; `until'the tip vII engages the exhaustitube. The l "11423356, issued July 25, 1922, orfinllthewall, 'of Y latch lI1iis mounted on a screw 22 in bracket I4 10 the 'stemtube the said apertu're`` connnunicaltingfA and is movedfbymechanism notshown, through c Withthesaid exhaust tube'. An end4 ofv thesaid a lever`d23 and a rod 24. A spring 25, extending stem"is then fused to the neck or end `ci? abulb between-posts; inthe latch Il and bracket I4, `which is subsequently evacuated throughthesaid takes up'all vslackand provides i'nore positive l exhaust tube which communicates Wththe movement! j o .c 'A Y terior 'of t ebulb throughfthe said aperture, "The Airis forcedcontinuously` through `the plunger ctefms `are made on` automatic `Iriachinery and it I2 and` ncrnially'V escapes `through the exhaust t scmetimeshappens that thernachine'lfails toblow aperture 26 of the stem. However, there isjno ""anaperture in the stem,`i`n Whiclicase thesubse niearisuof escapeif the stem^does` nothave `an quent operations offmounting a lament and aperturetherein.` Theairis forced through a 20` support'wires onthe `stern and sealing it toa bulb passage 21 in the plungerIZ 'and'tip l-lfrom-a e uselessly performed. flexible hose 29 connecting said c pipe 28 througha An-objectolmr7 nventonisltoprovidea der plunger andpipe. vTi`ie"pipef28 is connected vice for detecting the'absence of Aan exhaustfaperthrough a Tfitting 30 to a pipe3I which is conL f ture in a. stem and preventing xtheperfcrxnance nected` to a source of air pressures-11n case :the 25 of any sulosequentassembly or workingcperastemgqes pothvefan aperture zsthereim the, .1 tions upon thedefectivestem." `l o air circulation is Stopp ld' and a sumcient pres The various "features and advantages ofQmy fsure'is'fb'uilt upto expandthe'bellows 32 whichH device win appear frfn 'the renewing Vgiesmnpnon Y connected-to the 1-4 nmng sufby'apipe as., The.` f igpcigtheref; c c ,Q "1; j bellowsn32 is supported' bythe pipe 331and a. rod so "In-.thedrawingFlg'jI (sideele'tration-Iof4 a '35 ona'bracket-'Stsaid `rod"35"being slidably f detectingdevicecomprising niyjinvention; `"and mounted in' said bracket. When the latch Il is I Fig.'2"-i`sfa vertical section through theend of, the in a. 'vertical position "under the^ pin I5, the lever I kehaust tube ofthe steniandthenozzlecf kan air c 23 is moved 'tof the right` of the position shown 35. supplyline.' -I A f j? l t j Q inthe drawing'andthe arm 31 "thereon, engaging a5 UA detecting device colnrnisinginveritionisV the arm-3B on thependulum 36, `which swings shown' inthe drawing in conjunctionwith a-lamp about 'a `1: in*3il, holds the said pendulum 36F`to stem Ilot the typey disclosed in the Mitchelland the'left. When `the lever23'swings to=the left, White-Patent 1,423,956 referred toabove vThe thelatch Il i's removedv from itsposition under t 40 Said Stem may be carriedfby jaws IDfofamount the:pinflftherebyiallowing theY plunger I2 to 4.0 c making macmnof thtype disclosed in mylpatdropdown.` During this partei-the movement, ent 1,907,5,32i`ssued May f 9;` 1933,wherein 'the I 'the arm `23 has `not mOYel faldcgough to'allow` g I `1|aws'I58 (Fig. 5") in V"Saidpatent "correspond to th? Denfulum Iilllllle` thcvertical position thesaiajaws |o'.whe1i a; 1amp stem Vis indexed Show-1n. the fawlrng ,lf i9 ,the meantime. if imo position therubber tip or nozzle' of ai the stem Iii/in the devicedoesnot 4havean ex- V45 haust aperture, the bellows 32 expands, thus movtubular plungerI2 is brought down on the end 35 to th i ht u t th 3s haust tube I3 of the said stem.` The` .mg the pm Y e r-g agaf'ms e um` I of the ex. Y I t h of pendulum 36 and hoidlng thependulum in@ f said plunger l2 15 Shdablykmounted in a' on'- such a. positionl thatgthe extended portion-4U 501, Zonta] bracket' 4 and .is lowered, onto 'the ex' thereof is directly above the rod 4I. 'haust tube in two steps. Thefirst lowerngstep During `each-cycle of operation, Wheel n` is occurs when api '5^mfac1a'mp's0n the 911mg? Aturned one `revolution and `wheel 43, which `is k er l2 1S lowered 0n a 12mm l1; by the burning '0f driven by saidwheel 42, is normally moved there# 1 a lever I8. The lever I8"is mounted cn a pin I9 i with,` The wheel 43 is provided with g notch 4| A Y M in a. vertical bracket I9',` cn bracket I4, and is which is engaged by a. roller 45 alever 46 and 55 ing mechanism (not shown) which may be of the type disclosed in my Patent No. 1,907,532, hereinbefore referred to, whereinthe cam shaft I1 (Fig. 1) in said patent corresponds to said cam shaft 41. Lever 46 turns about pin 48 in wheel 42 and holds roller 45'in interlocking engagement with wheel 43 through the pu11 of spring 49 which is located between the said lever 46 and a post in wheel 42. As the wheel 42 is revolved, the roller 56 of the lever 46 strikes a cam-5| which pivots on a pin 52. If the stem being inspected has an aperture 26 therein, the cam l is raised, but ii'vthere vis no .aperture it is prevented from raising bythe extension 40 of the pendulum 36 which is located directly above the rod 4|, thereby causing roller 4,5

A to' be withdrawn from notch'44. There being no interlocking connection between the wheels 42 and 43 when the roller 45 is withdrawn, the support wire inserting `mechanism which is driven by wheel 43, is not operated. .The defective mounts are automatically removed from the machine at a subsequent position by mechanism which is not shown. i

What I claim as new. and desire to secure by Letters Patent of the United States, is:

- nisms normallyoperating upon vsaid stem and mechanism operated by the expansion of said bellows for rendering inoperative said driving means. 2. YA device for detecting the absence of an exhaust aperture in a stem for electric lamps and vsimilar articles comprising an air line including Y a substantially vertically disposed tube,.mecha nism for causing said tube to belowered until'the lower endthereof engages the end of the exhaust tube of a vertically disposed stem, means for 'I forcing air under pressure through said line, .the

air flowing normally through'said exhaust tube and escaping through said exhaust aperture of said stem, a bellows inserted in said air line which is expanded by the increased pressure in said line Y whena stem is'devoi'drof an exhaustaperture,

driving means for subsequent mechanisms normally operating uponsaid stem and mechanism operatedby the expansion of Vsaid bellows for rendering inoperative said driving means.

Y 3.v Av device flor. detecting the absence oi? an Y, exhaust, aperture in a stem for electric. lamps andsimilar varticles 'comprising an air line includng a substantiallyrvertically disposed metal tubehavingla resilienttip on the lower end thereof, mechanism Afor. causing said tube tor belowl '2,027,157 drives the cam shaft 41 of a support wire insertered until the resilient tip thereof engages the end of the exhaust tube of a vertically disposed stem, means for forcing air under pressure through said line, the air iiowing normally through said exhaust tube and escaping through said exhaust aperture of said stem, a bellows inserted in said air line which is expanded by the increased pressure in said line when a stem is devoid of an exhaust aperture, driving means for subsequent mechanisms normally operating upon said stem and mechanismroperated by the expansion of said bellows for rendering inoperative said driving means.

4. Ardevice for detecting the absence of an exhaust aperture in a stem for electric lamps and similar articles comprising an air line including a substantially vertically disposed tube having a laterally extending pin thereon, means for forcing air under pressure through said,air line, a latch disposed below said pin, a bellows inserted in said air line, a pendulum disposed adjacent said bellows, a vertically reciprocating rod disposed below said pendulum,' mechanism'i'or allowing the said vertically disposed tube portion of said air line to be lowered until the pin thereon engages said latch, engagement elements holding said latch under said pin and holding said pendulum away from the line of movement ofsaid vertically disposed rod, mechanism'for actuatingV said engagement elements to pivot said'latch and allow the end of said tube portion of said air line to engage with the'end of an exhaust tube of a stem, the air in said line therebynormally passing through said exhaust tube and escaping through the exhaust aperture in said stem, but the absence of an exhaust aperture causing the said bellows to b e expanded and thereby engage the said pendulum and hold it in the line of movement 'of said vertically disposed rod, thereby preventing said rod from reciprocating, and driving Ymeans for subsequent mechanisms normally operating upon said stem, said driving means being rendered inoperative by the failure of said rod to be reciprocated.

v 5. In a machine. vfor manufacturing stems for electric lamps and similar articles, a carrier for said stems, `a device for detecting the absence of exhaust 'apertures' in said stems comprising a tube, mechanism for causing the end of said tube to be advanced toward and engage the end oi' anV exhaust tube of a steml on said carrier, means vfor forcing air under pressure through said tub`e,`

the air flowing normally through said exhaust tube and escaping through'said exhaust aperture of said stem, aV bellows inserted in said air line which is expanded by the increased *pressure in said line when a stern is devoid of an exhaust aperture, driving means for subsequent mechanisms normally operating upon said stem, and mechanism operated by the expansion of said bellows for rendering inoperative said driving means.

J'QHN FLAWS, Jn. 

